from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A magician, or character that is skilled in both physical combat and the use of magic. Most gish characters use their magical abilities to increase their own personal combat abilities (known as "buffing").
- n. An outsider.
The term originates in the Dungeons & Dragons (D&D) game, where it originally referred to a Githyanki fighter/wizard combination. (Wiktionary)